Microsoft continues to gain share in the web server market, chipping away at Apache's commanding lead. The number of hostnames on Windows servers grew by 4.5 million, giving Microsoft 29.7% market share, a gain of 4.25% for the month. Apache had a decline of 429K hostnames, and loses 3.5% to 61.25%. Apache's lead over Microsoft, which stood at 48.2% in March, has been narrowed to 31.5%, a shift of 16.7% in just three months.